Fain, jr
polyolefin strapping



DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at therequest of the applicant or owner in accordance with the Notice of Dec.16, 1969, 869 O.G. 687. The abstracts of Defensive Publicationapplications are identified by distinctly numbered series and arearranged chronologically. The heading of each abstract indicates thenumber of pages of specification, including claims and sheets ofdrawings contained in the application as originally filed. The files ofthese applications are available to the public for inspection andreproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to themerits of alleged invention. The Patent Oflice makes no assertion as tothe novelty of the disclosed subject matter.

PUBLISHED DECEMBER 16, 1969 Improved polyolefin strapping having a bowedcrosssectional configuration comprising a center section with endsections extending outwardly from each side progressively increasing inthicknesses to an edge thickness greater than that of the center.

An improved method for manufacturing strapping from polyolefinsincluding the steps of (1) extruding a polyolefin into sheet form, (2)subjecting the sheet to a controlled temperature between about 35 F. toabout 200 F., (3) slitting the sheet into a plurality of straps whilemaintaining the controlled temperature, (4) orienting the strapping bydrafting at an elevated temperature, and (5) heat setting the orientedstrapping by exposing it to an intermediate temperature.

Dec. 16, M69 P. K. FAIN, ,JIR T869,001

POLYOLEF IN STRAP? IN G Filed Aug. 31, 1967 PAUL K. FAIN,JR.

INVENTQR.

